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A. SPAU LDIN G.

Gun-Locks. N0,t48,t50 PatentedMarch3.1874.

Witnesses: I Inventor: t

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UNITED STATES PATENT Cretan,

ABEL SPAULDING, OF SWANTON, OHIO, ASSIGNOR TO HIMSELF AND BENONI T.GEER, OF SAME PLACE.

IMPROVEMENT lN GUN-LOCKS.

Specification forming part of Letters Patent N0.14,l50, dated March 3,1874; application filed January 17, 1874;

To all whom it may concern:

Be it known that I, ABEL SPAULDING, of Swanton, in the county of Fultonand State of Ohio, have invented a new and Improved Gun-Lock, of whichthe following is a specification:

The accompanying drawing represents a front view of my improvedgun-lock, showing the construction of the same.

The object of my invention is to construct an improved gun-lock, whichis of greater strength and durability than those in common use, theparts being also more evenly balanced, of increased elasticity, andquicker movement. My invention consists in provid ing in place of thefeather-spring in' use, a second mainspring in the rear part of thelock, which is connected with the tumbler and sear, and operates themjointly with greater precision and with less strain upon the latter.

In the drawing, A represents a gun-lock of the usual construction,composed of the hammer B, mainspring G, and sear D, and tumbler B. Themainspring O is jointed, by a short pivoted link, a, to an arm oftumbler B, a second link, b, being pivoted to the rear part of the same,and jointed to the end of a second additional mainspring, E, which isattached to the rear end of look A, as shown in the drawing. This secondspring E is placed in opposite position to the front mainspring (J, andacts with its other end on the sear D. By cooking the hammer the tumblerB exercises an equal strain on the jointed ends of both springs E and O,and balances their power evenly, while giving at the same time therequired spring pressure on the sear. The joint action of bothmainsprings makes the front spring less liable to break, and impartsgreater power to the hammer. The lock becomes thereby more durable andserviceable; also quicker and more flexible in its movements.

Hay'ing thus described my invention, I claim as new and desire to secureby Letters Patent In combination with the hammer B, mainspring 0, searD, and tumbler B, comprising an ordinary look mechanism, an additionalmainspring which is jointed to the rear part of the tumbler and triggerin opposite direction to the front mainspring, so as to act joint- 1ywith the same on the tumbler, substantially as specified.

ABEL SPAUL DING. WVitnesses RICHARD MARsH, G. H. BESSON.

